Low-profile debris filter for compatible Staal Plast tray valve-sump assemblies. The filter helps keep leaves, growing media, and other debris from entering and obstructing a compatible valve-sump drain. Its low-profile design allows containers to be positioned over the filter area on supported tray models. Features Helps reduce debris entering the valve-sump assembly Designed to sit level with the compatible tray surface Replacement or service component for supported Staal Plast trays Compatibility: Confirm manufacturer part number 580020 and tray-series compatibility before ordering. Available documentation states that this filter is not compatible with 330.3, 435.4, 630.4 four-sided, CC, half-CC, or EUR trays. This listing includes one filter unless otherwise stated.